mirror of
https://github.com/minetest/minetest.git
synced 2024-11-27 01:53:45 +01:00
updated example map generator python script
This commit is contained in:
Perttu Ahola
parent
50a8087684
commit
81ac026e1f
75
genmap.py
75
genmap.py
@ -1,17 +1,12 @@
|
||||
#!/usr/bin/python
|
||||
#!/usr/bin/python2
|
||||
|
||||
"
|
||||
This is an example script that generates some valid map data.
|
||||
"
|
||||
# This is an example script that generates some valid map data.
|
||||
|
||||
import struct
|
||||
import random
|
||||
|
||||
def getrand():
|
||||
i = random.randrange(0,2)
|
||||
if i==0:
|
||||
return 0
|
||||
return 254
|
||||
import os
|
||||
import sys
|
||||
from pnoise import pnoise
|
||||
|
||||
"""
|
||||
Map format:
|
||||
@ -25,18 +20,72 @@ ffff = -1
|
||||
0001 = 1
|
||||
"""
|
||||
|
||||
f = open("map/sectors/00000000/ffff", "wb")
|
||||
def to4h(i):
|
||||
s = "";
|
||||
s += '{0:1x}'.format((i>>12) & 0x000f)
|
||||
s += '{0:1x}'.format((i>>8) & 0x000f)
|
||||
s += '{0:1x}'.format((i>>4) & 0x000f)
|
||||
s += '{0:1x}'.format((i>>0) & 0x000f)
|
||||
return s
|
||||
|
||||
def getrand():
|
||||
i = random.randrange(0,2)
|
||||
if i==0:
|
||||
return 0
|
||||
return 254
|
||||
|
||||
def writeblock(mapdir, px,py,pz, version):
|
||||
sectordir = mapdir + "/sectors/" + to4h(px) + to4h(pz)
|
||||
|
||||
try:
|
||||
os.makedirs(sectordir)
|
||||
except OSError:
|
||||
pass
|
||||
|
||||
f = open(sectordir+"/"+to4h(py), "wb")
|
||||
|
||||
if version == 0:
|
||||
# version
|
||||
f.write(struct.pack('B', 0))
|
||||
# is_underground
|
||||
f.write(struct.pack('B', 0))
|
||||
elif version == 2:
|
||||
# version
|
||||
f.write(struct.pack('B', 2))
|
||||
# is_underground
|
||||
f.write(struct.pack('B', 0))
|
||||
|
||||
for i in range(0,16*16*16):
|
||||
for z in range(0,16):
|
||||
for y in range(0,16):
|
||||
for x in range(0,16):
|
||||
b = 254
|
||||
r = 20.0*pnoise((px*16+x)/100.,(pz*16+z)/100.,0)
|
||||
r += 5.0*pnoise((px*16+x)/25.,(pz*16+z)/25.,0)
|
||||
#print("r="+str(r))
|
||||
y1 = py*16+y
|
||||
if y1 <= r-3:
|
||||
b = 0 #stone
|
||||
elif y1 <= r:
|
||||
b = 1 #grass
|
||||
elif y1 <= 1:
|
||||
b = 9 #water
|
||||
if version == 0:
|
||||
# Material content
|
||||
f.write(struct.pack('B', getrand()))
|
||||
f.write(struct.pack('B', b))
|
||||
elif version == 2:
|
||||
# Material content
|
||||
f.write(struct.pack('B', b))
|
||||
# Brightness
|
||||
f.write(struct.pack('B', 15))
|
||||
|
||||
f.close()
|
||||
|
||||
mapdir = "map"
|
||||
|
||||
for z in range(-2,3):
|
||||
for y in range(-1,2):
|
||||
for x in range(-2,3):
|
||||
print("generating block "+str(x)+","+str(y)+","+str(z))
|
||||
writeblock(mapdir, x,y,z, 0)
|
||||
|
||||
#END
|
||||
|
||||
102
pnoise.py
Normal file
102
pnoise.py
Normal file
@ -0,0 +1,102 @@
|
||||
#
|
||||
# A python perlin noise implementation, from
|
||||
# http://www.fundza.com/c4serious/noise/perlin/perlin.html
|
||||
#
|
||||
# This is used for testing how to create maps with a python script.
|
||||
#
|
||||
|
||||
import math
|
||||
p = (
|
||||
151,160,137,91,90,15,131,13,201,95,96,53,194,233,7,225,140,36,103,
|
||||
30,69,142,8,99,37,240,21,10,23,190,6,148,247,120,234,75,0,26,197,
|
||||
62,94,252,219,203,117,35,11,32,57,177,33,88,237,149,56,87,174,20,
|
||||
125,136,171,168,68,175,74,165,71,134,139,48,27,166,77,146,158,231,
|
||||
83,111,229,122,60,211,133,230,220,105,92,41,55,46,245,40,244,102,
|
||||
143,54,65,25,63,161,1,216,80,73,209,76,132,187,208,89,18,169,200,
|
||||
196,135,130,116,188,159,86,164,100,109,198,173,186,3,64,52,217,226,
|
||||
250,124,123,5,202,38,147,118,126,255,82,85,212,207,206,59,227,47,16,
|
||||
58,17,182,189,28,42,223,183,170,213,119,248,152,2,44,154,163,70,
|
||||
221,153,101,155,167,43,172,9,129,22,39,253,19,98,108,110,79,113,
|
||||
224,232,178,185,112,104,218,246,97,228,251,34,242,193,238,210,144,
|
||||
12,191,179,162,241,81,51,145,235,249,14,239,107,49,192,214,31,181,
|
||||
199,106,157,184,84,204,176,115,121,50,45,127,4,150,254,138,236,
|
||||
205,93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180,
|
||||
151,160,137,91,90,15,131,13,201,95,96,53,194,233,7,225,140,36,103,
|
||||
30,69,142,8,99,37,240,21,10,23,190,6,148,247,120,234,75,0,26,197,
|
||||
62,94,252,219,203,117,35,11,32,57,177,33,88,237,149,56,87,174,20,
|
||||
125,136,171,168,68,175,74,165,71,134,139,48,27,166,77,146,158,231,
|
||||
83,111,229,122,60,211,133,230,220,105,92,41,55,46,245,40,244,102,
|
||||
143,54,65,25,63,161,1,216,80,73,209,76,132,187,208,89,18,169,200,
|
||||
196,135,130,116,188,159,86,164,100,109,198,173,186,3,64,52,217,226,
|
||||
250,124,123,5,202,38,147,118,126,255,82,85,212,207,206,59,227,47,16,
|
||||
58,17,182,189,28,42,223,183,170,213,119,248,152,2,44,154,163,70,
|
||||
221,153,101,155,167,43,172,9,129,22,39,253,19,98,108,110,79,113,
|
||||
224,232,178,185,112,104,218,246,97,228,251,34,242,193,238,210,144,
|
||||
12,191,179,162,241,81,51,145,235,249,14,239,107,49,192,214,31,181,
|
||||
199,106,157,184,84,204,176,115,121,50,45,127,4,150,254,138,236,
|
||||
205,93,222,114,67,29,24,72,243,141,128,195,78,66,215,61,156,180)
|
||||
|
||||
def lerp(t, a, b):
|
||||
return a + t * (b - a)
|
||||
|
||||
def fade(t):
|
||||
return t * t * t * (t * (t * 6 - 15) + 10)
|
||||
|
||||
def grad(hash, x, y, z):
|
||||
h = hash & 15
|
||||
if h < 8:
|
||||
u = x
|
||||
else:
|
||||
u = y
|
||||
if h < 4:
|
||||
v = y
|
||||
elif h == 12 or h == 14:
|
||||
v = x
|
||||
else:
|
||||
v = z
|
||||
if h & 1 != 0:
|
||||
u = -u
|
||||
if h & 2 != 0:
|
||||
v = -v
|
||||
return u + v
|
||||
|
||||
def pnoise(x, y, z):
|
||||
global p
|
||||
X = int(math.floor(x)) & 255
|
||||
Y = int(math.floor(y)) & 255
|
||||
Z = int(math.floor(z)) & 255
|
||||
x -= math.floor(x)
|
||||
y -= math.floor(y)
|
||||
z -= math.floor(z)
|
||||
|
||||
u = fade(x)
|
||||
v = fade(y)
|
||||
w = fade(z)
|
||||
|
||||
A = p[X] + Y
|
||||
AA = p[A] + Z
|
||||
AB = p[A + 1] + Z
|
||||
B = p[X + 1] + Y
|
||||
BA = p[B] + Z
|
||||
BB = p[B + 1] + Z
|
||||
|
||||
pAA = p[AA]
|
||||
pAB = p[AB]
|
||||
pBA = p[BA]
|
||||
pBB = p[BB]
|
||||
pAA1 = p[AA + 1]
|
||||
pBA1 = p[BA + 1]
|
||||
pAB1 = p[AB + 1]
|
||||
pBB1 = p[BB + 1]
|
||||
|
||||
gradAA = grad(pAA, x, y, z)
|
||||
gradBA = grad(pBA, x-1, y, z)
|
||||
gradAB = grad(pAB, x, y-1, z)
|
||||
gradBB = grad(pBB, x-1, y-1, z)
|
||||
gradAA1 = grad(pAA1,x, y, z-1)
|
||||
gradBA1 = grad(pBA1,x-1, y, z-1)
|
||||
gradAB1 = grad(pAB1,x, y-1, z-1)
|
||||
gradBB1 = grad(pBB1,x-1, y-1, z-1)
|
||||
return lerp(w,
|
||||
lerp(v, lerp(u, gradAA, gradBA), lerp(u, gradAB, gradBB)),
|
||||
lerp(v, lerp(u, gradAA1,gradBA1),lerp(u, gradAB1,gradBB1)))
|
||||
@ -4711,6 +4711,9 @@ plan_b:
|
||||
/*
|
||||
Plan B: Get from map generator perlin noise function
|
||||
*/
|
||||
// This won't work if proper generation is disabled
|
||||
if(m_chunksize == 0)
|
||||
return WATER_LEVEL+2;
|
||||
double level = base_rock_level_2d(m_seed, p2d);
|
||||
return (s16)level;
|
||||
}
|
||||
|
||||
@ -29,7 +29,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
NOTE: The goal is to increment this so that saved maps will be
|
||||
loadable by any version. Other compatibility is not
|
||||
maintained.
|
||||
Serialization format versions:
|
||||
Serialization format versions (for raw map data (blocks, nodes, sectors)):
|
||||
== Unsupported ==
|
||||
0: original networked test with 1-byte nodes
|
||||
1: update with 2-byte nodes
|
||||
|
||||
Loading…
Reference in New Issue
Block a user